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Title: Hydrophobization of fully bio-based epoxy polymers using water as solvent : effect of additives
Authors: Bellido-Aguilar, Daniel Angel
Zheng, Shunli
Huang, Yinjuan
Sun, Ye
Zeng, Xianting
Zhang, Qichun
Chen, Zhong
Keywords: Engineering::Materials
Issue Date: 2020
Source: Bellido-Aguilar, D. A., Zheng, S., Huang, Y., Sun, Y., Zeng, X., Zhang, Q. & Chen, Z. (2020). Hydrophobization of fully bio-based epoxy polymers using water as solvent : effect of additives. European Polymer Journal, 140, 110043-.
Project: SERC 1528000048
Journal: European Polymer Journal
Abstract: Current epoxy industry still has a strong dependency on fossil-derived precursors as demonstrated in the use of bisphenol A-based resins. To improve the sustainability of the epoxy industry, bio-based chemicals have been explored for the synthesis of environmentally-friendly epoxy polymers. This paper reports the hydrophobization of fully bio-based epoxy coatings using only water as solvent. Three bio-based additives (hexanoic acid, resveratrol, and a cardanol-based epoxy resin) were studied aiming to enhance the hydrophobicity of the coatings. The curing reaction mechanisms have been extensively explored. The modified coatings showed better hydrophobicity, however, they tend to possess a lower crosslink density because these additives have, to some extent, disrupted the polymer network formation. The anticorrosion performance of the bio-based coatings was also evaluated and discussed based on the reported hydrophobicity and crosslink density. This study lays a foundation towards fully bio-based, environmentally-friendly polymers for hydrophobic applications in the future.
ISSN: 0014-3057
DOI: 10.1016/j.eurpolymj.2020.110043
Rights: © 2020 Elsevier Ltd. All rights reserved.
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:MSE Journal Articles

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